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MEDIUM · 4.7

CVE-2026-45460

Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information locally.

Vulnerability Description

Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information locally.

CVSS Score

4.7

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
Microsoft365 Apps-
Microsoft365 Copilot-
MicrosoftMicrosoft 365-
MicrosoftOffice 2019-
MicrosoftOffice 2021-
MicrosoftOffice 2024-

Related Weaknesses (CWE)

CWE-126

References

FAQ

What is CVE-2026-45460?

CVE-2026-45460 is a vulnerability with a CVSS score of 4.7 (MEDIUM). Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information locally.

How severe is CVE-2026-45460?

CVE-2026-45460 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-45460?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft 365 Apps, Microsoft 365 Copilot, Microsoft Microsoft 365, Microsoft Office 2019, Microsoft Office 2021.